I love talks like this. Regarding the source of our current (oops, apocalyptic) predicament, she hits the nail on the head. She even has a great comparison to other imperialist species (ants). Those who believe we can machine our way out of this super-brain/super-idiot predicament should takes notes. Same with those who think that after the crash of our civilization we will magically acquire humility and cosmic balance and can simply return to Eden with storybook ideals of a rural agriculture existence completely intact.
Anyway, this is a great talk and I wish there were more like it. We will have no hope of not repeating our mistakes unless we can clearly define those mistakes. And Prof. Krall goes a long way in helping carve out that definition.